I have submitted all of these latest versions to Mozilla Add-ons, but most have not yet been approved, so to get the latest version you must get the download it the extension's homepage here on Lifehacker. You can use Firefox's "Find Updates" button too, but if you downloaded the extension from Mozilla Add-ons in the past, Firefox will not automatically find the update today if it has not been approved there yet. You must download it using the links above. As always, post your "Better" extension suggestions in the comments.